Hi, Dr Marshall,
Because of the Spanish word order, it seems as if it should be "therapeutic/therapy complements", but that or other similar alternatives are just not used often in English.
This is what I'd put; it seems to fit with the items in your sub-headings.

http://www.cancerresearchuk.org/about-cancer/cancers-in-gene...
A complementary therapy means you can use it alongside your conventional medical treatment. It may help you to feel better and cope better with your cancer and treatment. It is important to discuss with your doctor any complementary therapy that you are thinking of using.
An alternative therapy is generally used instead of conventional medical treatment. All conventional cancer treatments have to go through rigorous testing by law in order to prove that they work. Most alternative therapies have not been through such testing and there is no scientific evidence that they work. Some types of alternative therapy may not be completely safe and could cause harmful side effects.

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Note added at 1 hr (2015-07-21 12:04:24 GMT)
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Unfortunately, a lot of sites use "complementary therapies" as a synonym for "alternative therapies", which would not be the meaning in your list.

Perhaps "adjuvant therapies" would be better.

Practice Guidelines for Perioperative Blood Transfusion and ...
anesthesiology.pubs.asahq.org/Article.aspx?articleid=1923206
Practice Guidelines for Perioperative Blood Transfusion and Adjuvant Therapies: An Updated Report by the American Society of Anesthesiologists Task Force ..

Additional Therapies - SkinCancer.org
www.skincancer.org › ... › Melanoma › Melanoma - Treatments
For patients with Stages III and IV disease, surgery is usually followed with an additional adjuvant therapy. Ask your physician to explain the possibilities and ...